公开(公告)号：US11422165B2

公开(公告)日：2022-08-23

申请号：US17023994

申请日：2020-09-17

Applicant: DENSO CORPORATION

Inventor： Hiroaki Miwa ,  Akito Sasaki ,  Ryosuke Sakai ,  Takuma Esaka ,  Tatsuaki Sugito

IPC: G01R15/20 ,  G01R19/00

Abstract: A current sensor includes a plurality of individual sensors and a wiring case. Each of the individual sensors includes an electrical-conduction member through which a measurement current to be measured flows, a magnetoelectric converter and an insulating sensor housing. The magnetoelectric converter converts a measurement magnetic field caused by a flow of the measurement current into an electric signal. The sensor housing accommodates the electrical-conduction member and the magnetoelectric converter therein. The wiring case is larger than the sensor housing. The wiring case includes an insulating integrated housing in which the plurality of individual sensors is fixed, and an input/output wiring disposed in the integrated housing and electrically connected to the megnetoelectric converter of each of the plurality of individual sensors.

公开(公告)号：US11360123B2

公开(公告)日：2022-06-14

申请号：US17001960

申请日：2020-08-25

Applicant: DENSO CORPORATION

Inventor： Tatsuaki Sugito ,  Takeshi Tsukamoto ,  Takuma Esaka ,  Ryosuke Sakai ,  Akito Sasaki ,  Hatsuomi Isogai ,  Hiroaki Miwa ,  Hiroshi Nomura ,  Takashi Ishikawa ,  Katsunori Michiyama

IPC: G01R15/20 ,  G01R19/00

Abstract: The current sensor has a conductive member through which a current to be measured flows in a predetermined direction, and a magneto electric converter facing and spaced apart from the conductive member in an intersecting direction intersecting the predetermined direction. An opposing portion of the conductive member facing the magneto electric converter has an annular shape in which two tip surfaces face each other via a gap around the predetermined direction. The magneto electric converter is opposed to the hollow portion, arranged in the opposing portion having an annular shape, in the intersecting direction via the gap.

公开(公告)号：US11105831B2

公开(公告)日：2021-08-31

申请号：US16583506

申请日：2019-09-26

Applicant: DENSO CORPORATION

Inventor： Takuma Esaka ,  Ryosuke Sakai ,  Tatsuaki Sugito

IPC: G01R1/16 ,  G01R15/14

Abstract: A current sensor detects a current flowing through a current path. The current sensor includes plural sensor elements, and each sensor element has a current path, a magnetic detector, a first magnetic shield and a second magnetic shield. The magnetic detector faces a part of the current path. A part of the current path and the magnetic detector are positioned between the first and second magnetic shields. The second magnetic field, the current path, the magnetic detector and the first magnetic shield are stacked in order along a stacking direction in each sensor element. The plural sensor elements are disposed adjacently to each other in a direction perpendicular to the stacking direction. The current path has a facing part facing the magnetic detector, and a first bent part bending from the facing part toward the second magnetic shield.